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"In this book special reports are made by H.W. Goodall on the physical condition of the subject during the fast, his subjective impressions and mental attitude toward the fast, and the microscopy of the urine and the tests for albumin; by J.E. Ash on the blood; by H.S. Langfeld on the psycho-physiology of the fast; by A.I. Kendall on bacterial intestinal flora; and by H.L. Higgins on alveolar air."